Celestion TF1225CX
Celestion TF1225CX - This 12 inch 250W speaker driver has a pressed steel chassis, ferrite magnet assembly and high temperature copper voice coil.
| Brand | Celestion |
| Model | TF1225CX |
| Kind | Coaxial |
| Nominal diameter (mm) | 305 |
| Impedance (Ω) | 8 |
| Rated power (W) | 250 |
| Maximum power (W) | |
| Sensitivity (dB, 1 W/1 m) | 97 |
| Frequency response | 40 Hz – 4000 Hz |
| Resonance frequency, fs (Hz) | 63.5 |
| DC resistance, Re (Ω) | 5.57 |
| Mechanical Q, Qms | 3.119 |
| Electrical Q, Qes | 0.405 |
| Total Q, Qts | 0.358 |
| Equivalent volume, Vas (l) | 45.12 |
| Effective piston area, Sd (cm²) | 530.93 |
| Moving mass, Mms (g) | 55.59 |
| Force factor, BL (T·m) | 17.46 |
| Voice coil inductance, Le (mH) | 1.2 |
| Linear excursion, Xmax (mm) | 4.5 |
| Excursion limit, Xmech (mm) | |
| Voice coil diameter (mm) | 64 |
| Cutout diameter (mm) | 286 |
| Mounting depth (mm) | 172 |
| Cone material | Kevlar loaded paper |
| Magnet material | Ferrite |
| Weight (kg) | 4.6 |